Question

7. Află valorile literelor și verifică.
1 065: 15 + 355:5 + 355:71 +1 065 : a = 162
[(b- 8000): 50 + 900] : 250 = 4
(376 + (c 3 - 4 832) - 555 + 5]: 118 = 7
(78 464 - 1541): 77 + 3 514 - 4 504 + d = 1 52
[(2 960 : e - 11):7 +990] : 111 = 9
[(1 000 000 - 388 156): 67 -32] : f= 364
I(g- 1): 100 + 90] : 10 - 10 = 0
[(h + 428 : 4) 2 + 5] x2-186 = 800
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Answer 1

Răspuns:

1 065: 15 + 355:5 + 355:71 +1 065 : a = 162

71+71+5+1065:a=162

1065:a=162-71-71-5

1065:a=15

a=1065:15

a=71

[(b- 8000): 50 + 900] : 250 = 4

[(b-8000):50+900]=4x250

(b-8000):50+900=1000

(b-8000):50=1000-900

(b-8000):50=100

(b-8000)=100x50

b-8000=5000

b=5000+8000

b=13.000

(376 + (c 3 - 4 832) - 555 + 5]: 118 = 7

ce semn e după c

(78 464 - 1541): 77 + 3 514 - 4 504 + d = 1 52

76 923:77+3514-4504+d=152

999+3514-4504+d=152

4513-4504+d=152

9+d=152

d=152-9

d=143

[(2 960 : e - 11):7 +990] : 111 = 9

[(2 960 : e - 11):7 +990] =9x111

(2960:e-11):7+990=999

(2960:e-11):7=999-990

(2960:e-11):7=9

(2960:e-11)=9x7

2960:e-11=63

2960:e=63+11

2960:e=74

e=2960:74

e=40

[(1 000 000 - 388 156): 67 -32] : f= 364

(611 844:67-32):f=364

(9132-32):f=364

9100:f=364

f=9100:364

f=25

[(g- 1): 100 + 90] : 10 - 10 = 0

[(g- 1): 100 + 90] : 10 =10

[(g- 1): 100 + 90] =10x10

(g-1):100+90=100

(g-1):100=100-90

(g-1):100=10

g-1=10x100

g-1=1 000

g=1 000+1

g=1 001

[(h + 428 : 4) 2 + 5] x2-186 = 800

ce semn este după paranteza rotunda?